CN1533975A - Yarn winding machine - Google Patents

Abstract

The present invention prevents the amount of slack from decreasing below a predetermined value when a yarn slack eliminating device is used to control a winding tension during a yarn winding process executed by a spinning machine. A winding device 12 winds a yarn spun by a spinning device 5, into a package 16, while a yarn slack eliminating device 10 is eliminating the slack of the yarn. During this process, when it is detected that the amount of slack in the yarn slack eliminating device 10 decreases below a predetermined value, the package 16 is separated from a rotating drum 13 to reduce a winding speed to increase the amount of slack. At this time, the time for which the package 16 remains separated is controlled in accordance with the winding diameter of the package 16 to adjust the aspect of reduction of the winding speed. When the amount of slack is increased, the time for which the reduction of the winding speed is continued and the amount of speed reduction are adjusted taking the winding diameter of the package into account. Therefore, the optimum speed reduction aspect can be set in accordance with a variation in the inertia moment of the package.

Description

Yarn winding machine

Technical field

The present invention relates to a kind of Yarn winding machine, it utilizes a Yarn relaxation eliminating device control winding tension; Say that especially the slack that the objective of the invention is to prevent to reside in the yarn on the lax elimination roller of Yarn relaxation eliminating device is reduced to and is lower than predetermined value.

Background technology

As example, awl tube yarn (cone package) utilizes spinning machine to form, and one of them spinning apparatus utilizes the sliver (fibrous bundle) as raw material to produce spun yarn, and a batch up gear is wound into a yarn with spun yarn then.In this case, say especially,, then traverse the cyclical variation unfriendly of the tension force in the yarn along with yarn if before reeling, do not control winding tension.This be because, in the path side and the big footpath side of awl tube yarn, the winding speed of yarn (circumferential velocity of tube yarn) is different, therefore, in the path side that yarn is reeled with low speed, slack increases, and the big footpath side of reeling at the yarn at high speed, slack reduces.

Therefore, a kind of technical description that is used to solve this technical matters is in for example Germany patent No.2, in 553,892.Utilize this technology, a kind of Yarn relaxation eliminating device comprise one by yarn around lax elimination roller, and be arranged between spinning apparatus and the batch up gear, to regulate winding tension according to residing in the lax slack of eliminating on the roller.According to Germany patent No.2, the technology of describing in 553,892, the variation based on the winding speed of tube yarn increases or reduces to reside in the lax slack of eliminating on the roller, to absorb the variation of tension force (winding speed).Specifically, can expect, reduce to reside in the lax slack of eliminating on the roller when spinning speed by increasing at the yarn winding speed to surpass, and be reduced to be lower than at the yarn winding speed and increase slack when spinning speed, the variation of yarn tension (winding speed) can be absorbed.

[patent documentation 1]: Germany patent No.2,553,892.

Previously described Germany patent No.2, the Yarn relaxation eliminating device in 553,892 must keep reel for yarn to eliminate on the roller around lax, so that absorb the variation of yarn tension.Therefore, lax eliminate slack on the roller, then must detect this situation, reducing the rotative speed of a yarn, reside in the lax slack of eliminating on the roller and be increased to predetermined value thereby make with depleted if reside in.Yet the weight and the rotor inertia thereof of tube yarn are depended on its winding diameter.That is to say that even the moderating process time is identical, amount of speed reduction also can be different.Therefore, impassabitity evenly reduces the rotating speed of a yarn simply and makes the slack that resides on the lax elimination roller increase to predetermined value.

Summary of the invention

The objective of the invention is, in being provided with the Yarn winding machine of Yarn relaxation eliminating device, prevent to reside in the slack shortage on the lax elimination roller of Yarn relaxation eliminating device reliably.

Put down in writing a kind of Yarn winding machine in the claim 1, in order to realize above-mentioned purpose.This Yarn winding machine comprises: batch up gear, and it is used for the reel for yarn coiled tube yarn from the supply side feeding; And Yarn relaxation eliminating device, it has the lax roller of eliminating, and the described lax elimination roller a part of yarn between described supply side and described batch up gear that is used to reel is with the variation of absorption yarn winding tension.This Yarn winding machine is characterised in that also and is provided with: deceleration control device, and it is used to control the winding speed of yarn, so that described winding speed is lower than the supply rate of yarn; The winding diameter detecting device that is used for described tube yarn; And control apparatus, it is used for regulating according to the winding diameter of tube yarn the deceleration control amount of described deceleration control device.

As previously mentioned structure can reduce the winding speed of a yarn according to Yarn winding machine of the present invention, reside in the slack on the lax elimination roller of Yarn relaxation eliminating device with increase.In this case, can regulate the deceleration control amount of winding speed according to the winding diameter of tube yarn.Therefore, the increase of slack can be arranged on suitable value.The adjusting of deceleration control amount comprises the adjusting in the processing time of slowing down and the adjusting of deceleration/decel and acceleration/accel.

Such as in the claim 2 record, can be provided with the coiling amount detecting device according to Yarn winding machine of the present invention, be used to detect the coiling amount of yarn on described lax elimination roller; And according to the coiling amount that the coiling amount detecting device detects, described deceleration control device can be exported the deceleration control signal about described winding speed.

According to this Yarn winding machine, if slack is lower than predetermined value, then the winding speed of batch up gear can be reduced to the supply rate that is lower than supply side, resides in the slack on the lax elimination roller of Yarn relaxation eliminating device with increase.Can prevent to reside in the lax slack loss of eliminating on the roller like this.

Such as in the claim 3 record, in Yarn winding machine according to the present invention, described coiling amount detecting device can be arranged on the direct upstream of described lax elimination roller, it comprises the Yarn tension detection apparatus that is used for detecting yarn tension before yarn to be ready being wound onto on the lax elimination roller, and calculates the slack that resides on the described lax elimination roller according to the detected yarn tension of Yarn tension detection apparatus.In this case, can utilize simple mechanism to detect slack.

In addition, such as in the claim 4 record, in Yarn winding machine according to the present invention, described batch up gear can comprise rotary drum, its with tube yarn state of contact under rotate, drive a tube yarn with rotation.Described deceleration control device can comprise and is used for mechanism that the tube yarn is separated with rotary drum.Described control apparatus can comprise and be used to regulate the mechanism that a yarn keeps the time of separation that the described time is as the deceleration control amount of described deceleration control device.In this case, simple mode can be adopted,, the rotating speed of a yarn can be reduced simultaneously again aptly with cost-cutting.

Under the adopted situation of the structure described in the claim 4, preferably, described batch up gear comprises the traverse gear that has the guide that traverses, described deceleration control device comprises separation control device, be used in the yarn that does not make coiling and scope that the guide that traverses breaks away from, the tube yarn being separated with rotary drum, such as in the claim 5 record.

In addition, such as in the claim 6 record, preferably, a plurality of batch up gears are set up in parallel, the guide that traverses that is provided with respectively for each batch up gear is driven by a common power shaft, to form a plurality of yarns simultaneously; Described separation control device and described deceleration control device can be controlled each described tube yarn and the corresponding distance between the guide and the rotating speed of a yarn of traversing respectively separately.By this structure, the winding angle of each yarn and steering position can be regulated independently.Therefore, if form a plurality of yarns simultaneously, then can implement best the setting according to the condition of each yarn.

Such as in the claim 7 record, described separation control device can be such mechanism, promptly when the tube yarn leaves the guide that traverses of described traverse gear a yarn is separated with rotary drum, to reduce the rotating speed of tube yarn.By this structure, the separation control device that is used to a yarn is separated with rotary drum can also be used as the deceleration control device that reduces tube yarn rotating speed.Can make the structure of equipment obtain simplifying like this.Adopt such structure, the structure described in the claim 6 is implemented easily.

Description of drawings

Fig. 1 is the front elevation according to an embodiment of spinning machine of the present invention.

Fig. 2 is the schematic elevational view according to the main portion structure of the spinning machine of this embodiment.

Fig. 3 is the schematic side elevation according to the structure of spinning unit in the spinning machine of this embodiment and operation chassis.

Fig. 4 is the schematic side elevation according to the structure of the Yarn relaxation eliminating device in the spinning machine of this embodiment in the yarn bootup process.

Fig. 5 is the schematic elevational view according to the structure of the Yarn relaxation eliminating device in the spinning machine of this embodiment in the yarn bootup process.

Fig. 6 is the schematic side elevation according to the structure of the Yarn relaxation eliminating device in the spinning machine of this embodiment when lax elimination begins.

Fig. 7 is at the lax schematic side elevation of eliminating the structure in the process operation according to the Yarn relaxation eliminating device in the spinning machine of this embodiment.

Fig. 8 is in the lax schematic elevational view of eliminating the structure in the process operation according to the Yarn relaxation eliminating device in the spinning machine of this embodiment.

Fig. 9 is the schematic side elevation of the structure in the process that reduces winding speed according to spinning unit in the spinning machine of this embodiment and operation chassis.

Figure 10 is the transparent view that is used in according to the lax elimination roller in the Yarn relaxation eliminating device of this embodiment.

Figure 11 shows lax elimination roller and the Yarn tension detection apparatus that is used in according in the Yarn relaxation eliminating device of this embodiment, and wherein Figure 11 A is the front elevation of doing from the front end of Yarn relaxation eliminating device, and Figure 11 B is a birds-eye view.

Figure 12 is used in according to the lax elimination roller in the Yarn relaxation eliminating device of this embodiment and the side sectional view of Yarn tension detection apparatus.

Going barrel and tube yarn according to present embodiment have been shown among Figure 13, the lateral plan of Figure 13 A when to be going barrel with the tube yarn contact wherein, Figure 13 B is the lateral plan of a yarn when separating with going barrel, and Figure 13 C is the enlarged side view of the main portion of tube yarn separated from one another and going barrel.

Figure 14 is the front elevation according to the main portion of the guide that traverses of present embodiment, and wherein Figure 14 A is used to explain the reason that folded circle is avoided, and Figure 14 B is used to the reason of explaining that the saddle type protuberance is prevented from.

The specific embodiment

Embodiments of the invention are described with reference to the accompanying drawings.In this manual, term " upstream " and " downstream " are to determine according to the service direction of yarn in spinning process.Specifically, upstream side is corresponding to spinning apparatus, and the downstream is corresponding to batch up gear.

[first embodiment]

Fig. 1 is the front elevation that has adopted the example of spinning machine 1 of the present invention.Fig. 2 is the schematic enlarged drawing of inner structure of the part of spinning machine 1.

Spinning machine is become by for example air spinning mechanism.The main constituent elements of spinning machine 1 comprises: a control part 1A; The 1B of spinning portion has been set up in parallel a large amount of spinning unit 2 in it; The 1C of blowing portion; And an operation chassis 3, it comprises a yarn splicing device, and can be along track R free-running operation between each spinning unit 2.In the present embodiment, spinning machine 1 is used to form awl tube yarn, yet it also can be used to form paralleling tube yarn (cheese package).

The control part 1A of spinning machine 1 implements following control: the running of the drive motor 31,32,33 of controlling and driving axle 41,42,43, wherein said axle drive shaft are used for applying propulsive effort to all spinning units 2 that constitute the spinning 1B of portion; Be controlled to be motor 34,35 runnings that each spinning unit 2 is equipped with; The operation of a batch up gear 12 of control; Or the like.

In this example, based on being input to each class value among the input part a (corresponding to the speed that spins of supply rate, spin the ratio of speed and take up roll speed, or the like), a calculating part b spins velocity information by a changer c or exiter substrate 30 to motor 31 outputs.In addition, output to the motor 35 of Yarn relaxation eliminating device 10 by an exiter substrate 40 about a lax rotary speed information of eliminating roller (will describe below).

The 1B of spinning portion comprises a large amount of spinning units 2 that are set up in parallel.Each spinning unit is configured to its operating conditions can be set separately.Be provided with a Yarn relaxation eliminating device 10, a spinning apparatus 5 and a batch up gear 12 in the spinning unit 2.The structure of spinning unit 2 will be described in detail below.

Among the 1C of blowing portion the negative voltage supply device is housed, it is used for by air duct supplying negative voltage on the desired location of spinning unit 2.The 1C of blowing portion can provide negative pressure to for example yarn suction device 7.

Based on the yarn splicing request signal, operation chassis 3 moves on track R, so that move on the position of the spinning unit 2 that needs the splicing yarn and stop therewith.Fig. 3 is the schematic side elevation of the structure of the 1B of spinning portion, and as shown in Figure 3, operation chassis 3 comprises: a yarn splicing device 17, for example knotter or splicer; A suction pipe 18, it attracts an end of the yarn that formed by spinning apparatus 5, and this end is guided to yarn splicing device 17; A suction nozzle 19, it attracts the yarn ends of the tube yarn 16 that supported by batch up gear 12, and this end is guided to yarn splicing device 17; And a tensioner arm 20, it contacts and tensioning one one thread Y (seeing Figure 12) as required.Therefore the operation chassis 3 of the direction operation that is set up in parallel along spinning unit 2 is equipped with described yarn splicing device 17, suction pipe 18 and suction nozzle 19.

In another example, can be equipped with yarn splicing device 17, suction pipe 18 and suction nozzle 19 respectively for each spinning unit.Yet, be installed at yarn splicing device 17, suction pipe 18 and suction nozzle 19 under the situation on the operation chassis 3 of the direction operation that is set up in parallel along spinning unit 2, can only utilize one group of above-mentioned parts that all spinning units 2 are carried out the yarn splicing operation.Can simplify the structure of spinning machine 1 like this.

The effect that is located at the suction pipe that is used for yarn splicing 18 on the operation chassis 3 is to attract spinning side yarn ends.Suction pipe 18 comprises that at its front end attracts a mouthful 18a, and can rotate around a pivot support portion 18b.When yarn splicing was operated, suction pipe 18 upwards rotated, so that attraction mouthful 18a approaches the yarn discharge orifice in the spinning apparatus 5.Then, suction pipe 18 attracts spun yarns Y, is moved down into its initial position then under the situation that keeps the attraction yarns Y.The suction pipe 18 side yarns Y 1 of so will spinning is directed to yarn splicing device 17.On the other hand, suction nozzle 19 is as the element that attracts the winding side yarn ends.Suction nozzle 19 comprises that at its front end attracts a mouthful 19a, and can rotate around a pivot support portion 19b.When yarn splicing was operated, tube yarn 16 stopped the rotation, and rotates along the direction opposite with normal hand of rotation then, so that yarn ends rotates.Then, yarns Y is positioned at the attraction mouth 19a attraction of suction nozzle 19 front ends and captures.Then, suction nozzle 19 is keeping upwards rotation under the situation of yarns Y.Like this, suction nozzle 19 guides to yarn splicing device 17 with the yarns Y of tube yarn 16 1 sides.In order to realize yarn splicing operation, yarn splicing device 17 utilizes a yarn joystick (not shown) that is located in the yarn splicing device 17 to clamp the yarn ends of the appropriate section that be adjacent to yarn splicing device 17 of yarn on the two of the yarn of spinning apparatus 5 one sides and batch up gear 12 1 sides.Yarn splicing device 17 takes described thread segment to a yarn splicing enforcement portion.

The a plurality of spinning units 2 that are placed among the 1B of spinning portion are made of the mechanism that fibrous bundle S is made yarn as raw material respectively.Below the concise and to the point structure of describing spinning unit 2.As shown in Figure 3, spinning unit 2 comprises draw gear 4, the spinning apparatus 5 as the yarn supply side, yarn feeding 6, yarn suction device 7, cutter 8, yarn faults detector 9, Yarn relaxation eliminating device 10, waxing attachment 11, batch up gear 12.These parts with above-mentioned order along thread path E from upstream side downstream side arrange.

Draw gear 4 is made up of the one-tenth pair roller of four linear arrangement, they be for example rear side roller 4a, the 3rd roller 4b, have the second roller 4d, front offset roll 4e from its lateral margin 4c that extends out, these rollers begin to arrange from upstream side with above-mentioned order.Spinning apparatus 5 is Air types, and it utilizes gyration airflow to produce spun yarn Y (hereinafter to be referred as making " yarns Y ") from fibrous bundle S.For example, spinning apparatus 5 can go out yarn with the high-speed spinning of per minute hundreds of rice.Perhaps, spinning apparatus 5 can be replaced by the spinning apparatus with other structure; Spinning apparatus 5 can utilize air spinning nozzle and a pair of twist yarn roller to produce yarns Y, perhaps can be the free-end spinning machine that utilizes the rotation generation yarn of revolving cup.Yarn feeding 6 comprises nip rolls 6a and transfer roller 6b, is used for yarns Y is clipped in mode between roller 6a, the 6b with yarn feeding downstream.Yarn suction device 7 is always attracting yarn, and when yarn faults detector 9 detected the defective of yarns Y, yarn suction device 7 attracted and remove the fragment of the yarns Y of being cut off by cutter 8.

Batch up gear 12 is wound on yarns Y on the spool 15 that is being kept by rocking arm 14.Batch up gear 12 comprises a rotary drum 13, and it rotates under the state of contact spool 15 or tube yarn 16.Rocking arm 14 is configured to around a pivot 14a revolution.Rocking arm 14 also is configured to have a rotary controlling mechanism 60, and it is as being used to reduce the device of winding speed, is used to control the contact action of spool 15 or tube yarn 16 and rotary drum 13 and spool 15 or tube yarn 16 and keeps time of separating with rotary drum 13.Rotary controlling mechanism 60 according to present embodiment comprises: a cylinder 64, and it has a piston rod 65 that links to each other with an end of rocking arm 14; A compressed air source, it is used for being used for to cylinder 6 supplies the pressurized air and the pressurized air that is used to separate of pressure contact; An electromagnetic valve device 63, it is used for the feed lines of switching pressurized air to cylinder 64; A controller 62, the operation of its control electromagnetic valve device 63; One unit controller 61, it is to controller 62 output control signals; And other element.

When normal spinning, rotary controlling mechanism 60 makes the pressurized airs that are used for the pressure contact always act on cylinder 64, so that piston rod 65 retreats, thereby a yarn 16 is contacted with rotary drum 13 with predetermined contact pressure.Then, when needed, cylinder 64 is supplied the pressurized air that is used to separate, and its pressure ratio is described to be used for the pressurized air height of pressure contact, so that piston rod 65 stretches out, thereby tube yarn 16 is separated with rotary drum 13.At this moment, unit control apparatus 61 application cylinder yarns 16 keep the time of separating with rotary drum 13 and separate the moment.Specifically, cell controller 61 based on imported such as yarn types, number of yarns, spin spinning conditions data such as speed and time that the spinning machine 1 measured by timing portion has turned round and carry out calculating.Then, cell controller 61 is based on the winding diameter of tube yarn 16, just according to the weight of tube yarn 16, is output as to controller 62 and makes electromagnetic valve device 63 carry out the required control signal of expection operation.

Shown in Figure 10 to 12, Yarn relaxation eliminating device 10 comprises: a Yarn relaxation is eliminated roller 21, and it is used for yarns Y being reeled and being retained in its outer surface 21a; Separate coiling tension force for one and apply part (yarn induction element) 22, its according to certain conditions and with the lax synchronously or independently concentric running of roller 21 of eliminating; A upstream side guide 23, it is arranged on the lax upstream side slightly of eliminating roller 21; An actuating device 35, stepping motor for example, it is used for rotation and drives the lax roller 21 of eliminating; Exiter substrate 40 (see figure 2)s, it is used for accessory drive 35; And a downstream guide 36, it is located at the downstream of lax elimination roller 21 and has slit 36a.These parts are fixed on the spinning unit 2 by a support 37 or analogue.

As shown in figure 12, the lax roller 21 of eliminating is fastened on the axle drive shaft 35a of actuating device 35, so that rotate with axle drive shaft 35a.Therefore, laxly eliminate the rotating speed that roller 21 can be reliably sets according to calculating part b and rotate with controllable mode.Lax eliminate being provided with of roller 21 and separate coiling tension force and apply part 22 those sides and be defined as front end P, its that side that is connecting actuating device 35 is defined as cardinal extremity Q.Next, tapering part 21b, 21d are formed on the outer surface 21a in cardinal extremity Q one side and front end P one side respectively, so that their diameter increases towards corresponding end face.The lax centre portion of eliminating roller 21 is the cylindrical part 21c with fixed diameter.Begin to be wound on the outer surface 21a from cardinal extremity Q one side by spinning apparatus 5 spun yarns Y.Yarns Y extends to batch up gear 12 (seeing Fig. 7 and 8) from front end P exhibition then.The tapering part 21b of cardinal extremity Q one side has such function, promptly divide 21b-1 to move to path part 21b-2 glossily from large-diameter portion by the yarns Y that makes supply and reel, move to intermediate cylindrical part 21c again, thereby yarns Y is wound on the surface of cylindrical part 21c regularly.The tapering part 21d of front end P one side also has such function, be that it can prevent and skids off the yarns Y that phenomenon promptly reels and skidding off sometime, make yarns Y sequentially be wound on path part 21d-2 earlier simultaneously and go up, be wound on large-diameter portion again and divide on the 21d-1, thereby guarantee that yarns Y is pulled out glossily.

As shown in figure 12, rod-like element 22a is fixed on and is located at the lax coiling tension force of separating of eliminating front end P one side of roller 21 and applies on the part 22, thereby transmits the power regulating mechanism and with respect to lax roller 21 concentric running of eliminating by one.

Being constructed as follows of this transmission power regulating mechanism is described.

Wheel element 22b by a supporting member 22c for example bearing be rotatably installed on the axial region 21e who stretches out from lax middle part of eliminating roller 21.The base portion of rod-like element 22a is fixed on the wheel element 22b.Wheel element 22b is installed with like this, promptly regulate operating portion 22g and prevent that one applies part 22f by the transmission power that constitutes such as force devices such as springs and skids off by transmission power, this transmission power regulate on the threaded portion of front end that operating portion 22g is threaded in axial region 21e and by for example one transmit power regulating part (nut element) 22d and a thrust piece 22e forms.Like this, regulate operating portion 22g by the transmission power on the threaded portion that will be threaded in axial region 21e and tighten, can regulate the pressure (friction force) that transmission power applies part 22f in the mode of non-stepping according to the transmission power regulating mechanism of present embodiment.If the transmission power regulating part 22d of the power of transmission regulating mechanism is exposed to the lax front end of eliminating roller 21, as present embodiment, then the operator can easily regulate transmission power.

Transmission power regulating mechanism can be regulated by rod-like element 22a to the lax size of eliminating the rotational resistance that roller 21 applies.Specifically, by unscrewing transmission power regulating part 22d such as nut element, transmission power applies the pressure (friction force) that part 22f is applied on the wheel element 22b and can reduce.Like this, only there is weak load just can guarantee that rod-like element 22a skids and rotate independently with respect to the lax rotation of eliminating roller 21.On the contrary, by tightening transmission power regulating part 22d, transmission power applies the pressure that part 22f is applied on the wheel element 22b and can increase.Like this, can guarantee that rod-like element 22a is non-slip and eliminate roller 21 whole rotations with lax, unless there is very large load to be applied on the rod-like element.In this way, be connected transmission power regulating part 22d such as nut element on the axial region 21e by tightening or unscrewing, can guarantee to regulate the pressure (friction force) that transmission power applies part 22f in the mode of non-stepping according to the transmission power regulating mechanism of present embodiment.

Therefore, separate coiling tension force and apply the tightness that part 22 can be regulated thrust piece 22e aptly, regulating the running state of rod-like element 22a, this rod-like element 22a is according to eliminating roller 21 independent rotations from the lax tension force of eliminating the yarns Y that roller 21 puts on display with respect to lax.That is to say, transmit the power regulating mechanism and can preset yarns Y and separate coiling tension force when eliminating roller 21 and putting on display that described tension force is along with spinning conditions yarn types and number of yarns different and changing for example from lax.The running state of regulating rod-like element 22a depend on lax eliminate roller 21 by transmission power apply rotational force that part 22f transmits with from the mutual action between the tension force of the lax yarns Y of eliminating roller 21 exhibitions.Say from another point of view, regulate the running state of rod-like element 22a, can preset the size of rod-like element 22a to the resistance that applies from the lax yarns Y of eliminating roller 21 exhibitions by utilizing the preconditioning of transmission power regulating mechanism.That is to say, transmit the power regulating mechanism and have and regulate the coiling tension force of separating that comprises rod-like element 22a and apply the function of separating coiling tension force that part 22 is provided.

For yarns Y is wound on the outer surface 21a of lax elimination roller 21 reliably, rod-like element 22a has given shape as described below.

Rod-like element 22a at first begins to extend to one from the lax outstanding slightly position of front end P of eliminating roller 21 along the direction of the opposition side that points to cardinal extremity Q from the base portion that it is fixed on the wheel element 22b in the mode that does not have the acute angle bending.Then, rod-like element 22a is in three position m, l, the bending of k place, and these three positions are arranged in lax the elimination on the roller 21 from inside to outside with above-mentioned order.Like this, the front end position j of rod-like element 22a is positioned at the lax radial outside of eliminating roller 21.In described three bending part m, l, k, two bending part l, k are positioned at the lax radial outside of eliminating roller 21, and a bending part m is positioned at the radially inner side that the lax large-diameter portion of eliminating roller 21 divides 21d-1.Rod-like element 22a at first bends at inboard bending part m, thereby along extending with the lax opposite direction of the hand of rotation of roller 21 in the yarn winding process of eliminating.Then, towards lax cardinal extremity Q one lateral buckling of eliminating roller 21, at last, thereby extend along the lax hand of rotation of eliminating roller 21 by lateral buckling position k place bending outside at next bending part l for rod-like element 22a.

Like this, rod-like element 22a has a yarn junction surface R, and it is made of front end position j, bending part k and bending part l, and has one towards the lax open angle of hand of rotation of eliminating roller 21.Yarn junction surface R be located in opposed mode between lax front end P that eliminates roller 21 and the cardinal extremity Q the lax outer surface 21a that eliminates roller 21 above, simultaneously with the lax outer surface 21a that eliminates roller 21 preset distance of being separated by.Eliminate roller 21 rotations according to the rod-like element 22a of present embodiment with lax, so that the yarns Y that engages with rod-like element 22a can stably be wound on the desired location of outer surface 21a of lax elimination roller 21 in lax elimination process.Rod-like element 22a can also prevent reliably that yarns Y from embedding in the lax gap of eliminating between roller 21 and the rod-like element 22a.

Yarn relaxation eliminating device 10 according to present embodiment is provided with a Yarn tension detection apparatus 50 in lax direct upstream of eliminating roller 21, and it is used to detect the tension force of yarns Y.Shown in Figure 11 and 12, Yarn tension detection apparatus 50 comprises: a roughly L shaped thin bar 51, and it is placed in lax upstream and the close cardinal extremity Q that eliminates roller 21; A pivot support portion 52, its middle part of supporting thin bar 51 is to enable pivot; And a switch member 54, microswitch has for example applied set pressure or more during high pressure, its output ON operation signal thereby be resisted against on the switch member 54 to it in the end portion 53 of thin bar 51.

Be not wound on laxly when eliminating on the roller 21 (seeing Figure 4 and 5) in yarns Y, thin bar 51 is positioned at not and the yarns Y position contacting.Like this, do not have power to be applied on the thin bar 51, and end portion 53 does not apply any exerting oneself.Therefore, switch member 54 is not carried out ON operation (seeing the solid line among Figure 11 B).Begin after reeling on the lax elimination roller 21 in yarns Y, yarns Y can touch thin bar 51.Thin bar 51 is pushed by the tension force of yarns Y.As a result, shown in the long and two-short dash line among Figure 11 B, thin bar 51 is a rotational with pivot support portion 52, so that end portion 53 is by being pressed on the switch member 54.Then, predetermined or higher tension force acts on the thin bar 51, so that end portion 53 applies set pressure or high pressure more.Like this, switch member 54 is switched on, with to cell controller 61 output function signals.

As mentioned above, end portion 53 acts on the size that pressure on the switch member 54 depends on the tension force of the yarns Y that contacts with thin bar 51.That is to say that switch member 54 switches on and off according to the size of the tension force of yarns Y.In addition, the tension force of yarns Y depends on that yarns Y is in the lax coiling amount of eliminating on the roller 21 (slack).This is because when a large amount of yarns was reeled, yarns Y and the lax sliding-frictional resistance of eliminating between the roller 21 were big.Therefore, yarns Y can not be slided on the surface of lax elimination roller 21 glossily.Like this, the tension force of the yarns Y of the lax upstream side of eliminating roller 21 is big.On the contrary, when having only yarns Y in a small amount to be reeled, yarns Y can be slided on the surface of lax elimination roller 21 glossily.Like this, the tension force of the yarns Y of the lax upstream side of eliminating roller 21 is little.Therefore, when a large amount of lax yarns Y was wound onto on the lax elimination roller 21, yarn tension was enough big, so that switch member 54 remains on the ON operation.After the slack of yarns Y reduced, yarn tension also can reduce, so that switch member 54 disconnects.Utilize this mechanism, be used to the yarn tension that causes switch member 54 to be connected, can detect according to the Yarn tension detection apparatus 50 of present embodiment that to be wound on the lax amount of eliminating the lax yarns Y on the roller 21 be to surpass predetermined value or deficiency by regulating aptly.Therefore Yarn tension detection apparatus 50 is used as coiling amount of thread detecting device.Therefore, can utilize simple mechanism just can detect the Yarn relaxation amount, and not need optical detection to be wound on the lax amount of thread of eliminating on the roller 21, also not need to contact the yarn that is wound on the lax elimination roller 21.

In yarn splicing or similar operations, the upstream side guide 23 that is located at Yarn relaxation eliminating device 10 upstream sides is being driven and is advancing or retreat, yarns Y moved to not and to separate coiling tension force and apply position that part 22 engages (at this, be not wound on lax the elimination on the roller 21), thereby before yarn splicing, the upstream yarn ends is pulled to when relaxing elimination roller 21, prevent from the upstream yarn ends is supplied to the baulk of yarn splicing device 17.In addition, in order to absorb the lax of yarns Y during yarns Y with splicing at yarn splicing device 17 clamping upstream extremities, upstream side guide 23 is being driven and is advancing or retreat, and applies part 22 and engages with yarns Y will separate coiling tension force, thereby start yarns Y to the lax coiling of eliminating on the roller 21.Operation chassis 3 is provided with one by being used to drive driving and reversing mechanism 24 and control setup (not shown) that is used to control driving and reversing mechanism 24 that upstream side guide 23 advances or the cylinder that retreats or analogue constitute.That is to say that upstream side guide 23 is yarn shifters, driving and reversing mechanism 24 is actuating devices of upstream side guide 23.When being positioned at progressive position, upstream side guide 23 remains on thread path the position that yarns Y is not engaged with Yarn relaxation eliminating device 10.When being positioned at going-back position, upstream side guide 23 moves to thread path the position that yarns Y is engaged with the rod-like element 22a of Yarn relaxation eliminating device 10.

Rod-like element 22a be configured to be positioned at thread path on yarns Y engage, described thread path extends in conventional spinning operation with shortest distance and is between the upstream side guide 23 and downstream guide 36 of going-back position.That is to say that upstream side guide 23 is provided with like this, so that intersect with thread path with the lax rotational trajectory face of eliminating the rod-like element 22a of roller 21 rotations.

Operation when the spinning machine 1 of structure is used to form awl tube yarn as previously mentioned is described below.

Shown in Fig. 3 to 5, be in not halted state and spinning unit 2 when carrying out routine operation at operation chassis 3, the upstream side guide 23 of Yarn relaxation eliminating device 10 by tensile elements for example the spring (not shown) force tractive and remain on going-back position.In this state, carry out the operation of reel for yarn district.In addition, in each spinning unit 2 of spinning machine 1, draw gear 4 is fed into spinning apparatus 5 with fibrous bundle S, the yarns Y feeding downstream that yarn feeding 6 produces spinning apparatus 5 spinnings.Then, yarns Y is moved the dead ahead of warp yarn suction device 7 and yarn faults detector 9, and is fed to batch up gear 12 by upstream side guide 23, downstream guide 36 and waxing attachment 11.Then, yarns Y is being driven by rotary drum 13 rotates, thereby is wound onto on the spool 15, to form tube yarn 16.

After the coiling of yarns Y began, in the suitable time, a rotate instruction was output to the lax drive motor 35 of eliminating roller 21 by exiter substrate 40 (see figure 2)s.As shown in Figure 6, the lax roller 21 of eliminating is driven in rotation, and this rotation driving condition is kept in spinning process always.As previously mentioned, being located at the lax rotational trajectory face of eliminating the rod-like element 22a on the roller 21 is configured to intersect with the thread path that is limited by upstream side guide 23 and downstream guide 36.Therefore, the lax rotation of eliminating roller 21 causes rod-like element 22a to engage naturally with yarns Y.In addition, rod-like element 22a is shaped as and it is engaged easily and yarns Y is not easy to embed in the gap that relaxes between elimination roller 21 and the rod-like element 22a with yarns Y.Therefore, yarns Y can be looked the locality and is directed on the lax outer surface of eliminating roller 21.Therefore, only yarns Y will be wound on the outer surface of lax elimination roller 21, shown in Fig. 7 and 8 reliably by the lax rotation of eliminating roller 21.In this, the speed that spins (coming down to the yarn Feeding speed of yarn feeding 6) according to spinning apparatus 5, calculating part b is used to calculate and be provided with the lax rotating speed of eliminating roller 21 from the input value of input part a, so that just born suitable tension force immediately by the yarn of yarn feeding 6 feeding downstream after just being spun.

Yarn relaxation eliminating device 10 has yarns Y is wound on lax the elimination on the roller 21 to eliminate the lax function of yarns Y in thread path.Yarn relaxation eliminating device 10 also has increase or reduces the function of slack with the tension force of adjusting yarns Y.This mechanism will be described below.

Yarns Y resides in the lax slack of eliminating on the roller 21 and depends on that the lax upstream side of eliminating roller 21 spins the difference between speed and the downstream winding speed (yarn is from the lax coiling speed of eliminating on the roller 21 of separating).Winding speed is arranged to usually a little more than the speed of spinning, so that apply suitable winding tension to yarn.Like this, act on the rod-like element 22a with the corresponding load of above-mentioned velocity contrast.This is because when the speed of spinning was higher, the amount that being fed to the lax yarns Y of eliminating roller 21 was always greater than separating the amount of reeling and being directed into the yarns Y of batch up gear 12, thereby can increase simply and being wound on the lax amount of thread of eliminating on the roller 21.

As previously mentioned, rod-like element 22a can independently rotate with respect to the lax roller 21 of eliminating.In addition, transmitting the power regulating mechanism can regulate by the lax roller 21 of eliminating and be delivered to rotary driving force on the rod-like element 22a.Therefore, the load on acting on rod-like element 22a is a predetermined value or when following, and rod-like element 22a eliminates roller 21 whole rotations with lax.Therefore yarns Y can be wound on lax the elimination on the roller 21 to increase slack.On the contrary, after load had surpassed predetermined value, rod-like element 22a rotated independently with respect to lax elimination roller 21 or rotates, so that yarns Y is put on display (separating coiling) from the lax roller 21 of eliminating.Like this, transmit the size that the power regulating mechanism can suitably be provided with related load by the independent rotation (rotation) of rod-like element 22a, to apply predetermined winding tension to yarns Y.Keep constant if winding speed is constant, then be wound on the lax yarns Y of eliminating on the roller 21 and put on display with almost fixing speed.

If form awl tube yarn, then the yarn winding radius can change in the stroke that once traverses.Therefore winding speed also changes.If the downstream winding speed increases, then rod-like element 22a rotates independently or makes rotation amount with respect to lax elimination roller 21 increases, and the coiling amount of separating of yarns Y increases.Therefore, allow winding speed to increase.On the contrary, if the downstream winding speed reduces, then rod-like element 22a reduces with respect to the lax amount of eliminating roller 21 independent rotation or rotation, and the coiling amount of separating of yarns Y reduces.Therefore, allow winding speed to reduce.In either case, winding tension is by being located at the lax transmission power regulating mechanism decision of eliminating between roller 21 and the rod-like element 22a.Therefore, can apply stable winding tension, and with the increase of winding speed with reduce to have nothing to do.

Utilize said mechanism, provide a kind of like this function, promptly when yarn turns around in the awl tube yarn, allow winding speed to change, so that winding tension keeps is constant according to the Yarn relaxation eliminating device 10 of present embodiment.

Yarn relaxation eliminating device 10 according to present embodiment has adopted such structure, and wherein rod-like element 22a links to each other by transmission power regulating mechanism with the lax roller 21 of eliminating.Therefore, when rod-like element 22a rotated independently with respect to lax elimination roller 21 or does rotation, the size of load can easily change.Therefore, tackle the variation of winding tension easily, this variation is depended on such as yarn types, number of yarns, is spun spinning conditions such as speed.

The function that allows winding speed to change and stablize winding tension for Yarn relaxation eliminating device 10 is had, and yarns Y is minimized to the lax pilot operationp step number of eliminating on the roller 21, need keep reel for yarn as much as possible eliminates on the roller 21 around lax, that is to say, avoid slack depleted.Also must in long-time, keep this state.

In addition, winding speed is arranged to usually a little more than the speed of spinning.Therefore, unless the rotation of tube yarn 16 is controlled, can separate coiling very soon otherwise be wound on lax whole yarns Y of eliminating on the roller 21.Therefore, in the present embodiment, the slack of yarn is based on detected by the Yarn tension detection apparatus 50 detected yarn tensions that are located at lax elimination roller 21 next-door neighbour upstreams.If detect the slack deficiency, then the winding speed of tube yarn 16 reduces, to recover slack.

If have predetermined or more substantial lax yarn at the lax roller 21 of eliminating, and the upstream yarn tension has predetermined or higher value, then shown in Figure 11 B, the switch member 54 of Yarn tension detection apparatus 50 is exported the ON signal continuously to the cell controller 61 of the rotary controlling mechanism 60 shown in Fig. 3 and 9.Reduce so that after yarn tension dropped to below the predetermined value, switch member 54 stopped to export the ON signal at the lax slack of eliminating roller 21.Then, cell controller 61 is used for the control signal of separator cartridge yarn 16 to controller 62 outputs.Then, controller 62 is to electromagnetic valve device 63 output function signals.Like this, the pressurized air that is used to separate is supplied to cylinder 64.Then, as shown in Figure 9, the piston rod 65 of cylinder 64 stretches out, so that rocking arm 14 rotations, thereby tube yarn 16 is separated from rotary drum 13.

The tube yarn 16 of separating and no longer be applied in rotary driving force from rotary drum 13 is by the friction drag between spool 15 and the rocking arm 14 or similar factor and rev down.As a result, as previously mentioned, the downstream winding speed of Yarn relaxation eliminating device 10 drops to the speed that spins that is lower than the yarns Y from the lax elimination of the new introducing of upstream side roller 21.Velocity contrast causes residing in the lax Yarn relaxation amount of eliminating on the roller 21 and increases.The Yarn relaxation amount that resides on the lax elimination roller 21 is increased after reaching the required effluxion of predetermined value, and controller 62 is according to the control signal output function signal from cell controller 61.Operation signal causes electromagnetic valve device 63 operations, discharges from cylinder 64 with the pressurized air that will be used for separating.Like this, piston rod 65 retreats, so that rocking arm 14 rotates along Return-ing direction, contacts thereby tube yarn 16 taken to again with rotary drum 13.Then, the yarn wraparound program is proceeded with normal winding speed.

The rotor inertia of tube yarn 16 changes along with the size of winding diameter.Therefore, tube yarn 16 with winding speed is reduced to predetermined value after rotary drum 13 separates so that reside in the lax slack of eliminating on the roller 21 and be increased to the required time of predetermined value and can change.Specifically, when tube yarn 16 had big winding diameter, its rotor inertia was also big.Therefore, compare with little winding diameter, tube yarn 16 with need the longer time so that winding speed is reduced to predetermined value after rotary drum 13 separates.For this reason, present embodiment being provided with is used to regulate the control apparatus of the deceleration control amount of a yarn 16, and its winding diameter by calculating tube yarn 16 to be determining the weight of tube yarn 16, and controls the time that keeps tube yarn 16 to separate with rotary drum 13 according to winding diameter.

It is contemplated that described control apparatus can comprise, for example, one is located in the cell controller 61 and by spinning coiling length computation portion that speed storage part and timing portion form, yarn types and quantity storage part, a disengaging time calculating part or the like.The winding diameter of tube yarn 16 depends on yarn types, number of yarns and coiling length.Coiling length can be multiply by the coiling time and drawn by winding speed (or spinning speed).Yarn types, number of yarns and winding speed are according to spinning conditions and by default.Therefore, the winding diameter of tube yarn 16 can be come out by the coiling Time Calculation that timing portion measures.Then, winding diameter can be used to calculate the rotating speed that is used for tube yarn 16 and is reduced to the required disengaging time of predetermined value.In actual applications, yarn types, number of yarns and coiling (spinning) speed has predetermined value, and the coiling time is relevant with the winding diameter of tube yarn 16.Therefore, can work out such program, wherein utilize the pre-input data of relevant yarn types, number of yarns and coiling (spinning) speed, the disengaging time calculating part can be according to the coiling time that is measured by timing portion and definite winding diameter comes the calculating optimum disengaging time.That is to say that tube yarn disengaging time can only be regulated according to the coiling time.

Utilize above-mentioned control apparatus, can carry out following operation according to the spinning machine 1 of present embodiment.

If Yarn tension detection apparatus 50 detects in the yarn winding process and residing in the lax slack of eliminating on the roller 21 and drop to and be lower than predetermined value, then rotary controlling mechanism 60 keeps tube yarns 16 to separate preset time with rotary drum 13.Control apparatus in the cell controller 61 comes the calculating optimum disengaging time according to the winding diameter of the tube yarn of being determined by spinning conditions of having imported and coiling time 16.After having passed through disengaging time, tube yarn 16 contacts with rotary drum 13 once more.When tube yarn 16 had little winding diameter, its rotor inertia was also little.Therefore, after tube yarn 16 left rotary drum 13, its rotating speed reduced rapidly.Like this, slack can recover rapidly.Therefore, tube yarn disengaging time is shorter.Along with the increase of winding diameter, rotor inertia also correspondingly increases, therefore at tube yarn 16 with after rotary drum 13 separates, the rotating speed of tube yarn 16 only descends slightly.Therefore, the required time of the predetermined value that slack is increased also correspondingly prolongs.If tube yarn disengaging time is not conditioned but is set to consistent value, then along with the increase of winding diameter, the amount of recovery of slack can descend gradually.As a result, tube yarn 16 can hinder the recovery of slack because of the rotation that inertia causes, thereby causes that being wound on lax whole yarns Y of eliminating on the roller 21 separates coiling.On the contrary, among the present invention, can be according to the winding diameter of tube yarn and the resident slack of automatically regulating.Therefore, can be from the beginning of winding process to the amount of recovery that finishes to keep slack constant.The stabilization that helps the quality of a yarn 16 like this.

Under the long situation of the disengaging time of tube yarn 16, the rotation of tube yarn 16 can stop.At this moment, even yarns Y stops in the downstream of Yarn relaxation eliminating device 10, the guide 70 that traverses also can be attempted yarns Y is traversed.As a result, the guide 70 that traverses may influence the quality of yarns Y or cause yarns Y fracture.In addition,, a tube yarn 16 that has stopped contact if being brought into fast with rotary drum 13, then yarn tension variation fast, thus be directed at yarn breakage.For fear of this problem, need suitably to set the disengaging time of tube yarn 16.

In addition, in the short time after yarns Y begins to reel on empty reel spool, the weight of tube yarn 16 is very little.In this state, disadvantageously, aforementioned lock out operation may cause a yarn 16 rotations to stop soon.Therefore, in order to prevent this point, it is desirable to, in short time after beginning to reel, finish lock out operation by in short time gap, separating repeatedly, reside in the lax slack of eliminating on the roller 21, prevent that simultaneously the rotation of a yarn 16 from stopping increasing gradually with contacting.

[second embodiment]

For described spinning machine 1, it can adopt a kind of like this example, promptly the winding speed that reduces a yarn 16 according to predefined deceleration program to be increasing slack, and needn't consider to reside in the slack on the lax elimination roller 21 of Yarn relaxation eliminating device 10.For example, it is contemplated that, step below carrying out repeatedly, residing in the lax slack of eliminating on the roller 21 can be restored in the specific period, promptly rotate rocking arm 14 and separate preset time with rotary drum 13, then rocking arm is rotated so that tube yarn 16 contacts once more with rotary drum 13 along Return-ing direction to keep tube yarn 16.This example has guaranteed to recover slack in specified time.As a result, descend even reside in the lax slack of eliminating on the roller 21 in the operating process of spinning machine, the tension adjustment in the yarn wraparound program also can continue reliably and not stop.The deceleration program that is used for winding speed can be provided with aptly according to spinning conditions.

In the present embodiment, being located at the lax Yarn tension detection apparatus 50 of eliminating roller 21 upstreams can omit.In addition, in the present embodiment, the scheduled volume that slack is increased also can correspondingly prolong along with the winding diameter of tube yarn 16 required deceleration time.Therefore, wish to be provided with control apparatus, it can be in each deceleration steps of tube yarn 16 increases the processing time of slowing down according to the recruitment of the winding diameter of tube yarn 16.

[the 3rd embodiment]

A kind of Yarn winding machine that is used in spinning machine, yarn-twisting machine, the false twisting machine can be reeled by the yarn of yarn feeding feeding, utilizes a traverse gear to come traversing yarn simultaneously.This Yarn winding machine is usually configured to form simultaneously a plurality of yarns.In this case, described in Japanese Patent open source literature No.2871595, traverse gear can be constructed like this, and the guide that traverses that promptly is used for each yarn is fixed on a common power shaft (traverse bar), and this common power shaft is used for whole all guides that traverse that drive.

Be well known that the traverse gear that comprises the guide that back and forth traverses in the Yarn winding machine utilization is during with reel for yarn coiled tube yarn, folded circle and saddle type can occur and swell two kinds of problems.Folded circle is a kind of phenomenon that produces when same position is reeled repeatedly at yarn.Saddle type protuberance is a kind of phenomenon that produces under the situation below, and promptly greater than the middle part, this is because the speed at both ends that traverses is forced to reduce to yarn in the coiling amount of the opposite end of tube yarn, and the steering position of direction traverses corresponding to turning round at described two ends.As a measure that addresses the above problem, a kind of technology is disclosed among Japanese Patent Application Publication document (spy the opens clear) No.61-217478, it utilizes a cam mechanism to cause the range that moves back and forth of the guide that traverses, with the periodic variation width that traverses, just change steering position.

[patent documentation 2]: Japanese Patent open source literature No.2871595.

[patent documentation 3]: Japanese Patent Application Publication document No.61-217478.

The technology of describing among the Japanese Patent Application Publication document No.61-217478 can utilize traverse device to solve folded circle and two kinds of problems of saddle type protuberance of Yarn winding machine simultaneously.Yet the shortcoming of this technology is, needs to adopt a complex mechanism that comprises a large amount of elements.This mechanism is difficult to make, and the cost height.In addition, the technology that is difficult to describe among the Japanese Patent Application Publication document No.61-217478 is applied in the traverse gear of describing among the Japanese Patent open source literature No.2871595, this traverse gear comprises a mechanism, and wherein a common power shaft is used for driving the guide that traverses in a large number.Therefore, can not be provided with or control the variable quantity of the width that traverses of each yarn separately.

For this reason, the invention is characterized in and comprise batch up gear 12, be used to change a yarn and the discrete control setup of the distance between the guide of traversing and be used to reduce a deceleration control device of yarn speed.These devices can utilize for example following parts and construct, be that of traverse device is used for the side travel yarns Y guide 70 that traverses, and one be used to the mechanism that makes a yarn 16 and rotary drum 13 separate or contact, wherein this rotary drum 13 is used for a contact and a rotation driving tube yarn 16, as shown in figure 13.It is also conceivable that the device that is used for moving tube yarn 16 promptly is used to change a yarn and traverses that the control setup of distance can be a mechanism that is used to rotate rocking arm 14 between the guide, this rocking arm upper support the spool of tube yarn 16.

Suppose shown in Figure 13 B, separating with the guide 70 that traverses as shown in FIG. 13A with rotary drum 13 with 13 contacted yarns of rotary drum 16.Like this, tube yarn 16 no longer bears the rotary driving force of rotary drum 13.Therefore, rotating speed reduces under the effect of friction drag, so that winding speed reduces.Next, mechanism returns state shown in Figure 13 A.Shown in Figure 13 C, tube yarn 16 separated from one another and the separating distance δ between the rotary drum 13 are configured to spun yarn Y and throw off from the guide 70 that traverses.In addition, the lock out operation of tube yarn 16 is controlled ideally, so that separating distance δ has the value of basic fixed, and irrelevant with may changing of the winding diameter of tube yarn 16.

Can solve folded circle and two kinds of problems of saddle type protuberance by tube yarn 16 being implemented previously described separation and operating of contacts according to Yarn winding machine of the present invention.Its reason of explained later.

Folded circle problem is to occur like this, promptly when yarns Y is winding on the yarn 16 by side travel, and yarns Y is reeled repeatedly in same position.Shown in Figure 14 A, yarns Y engages with the guide 70 that traverses of traverse gear, and traverses in preset range.Yarns Y so is wound on the yarn 16, tilts at a certain angle simultaneously.The bevelled angle is speed of traversing (moving velocity) and the winding speed (circumferential velocity of tube yarn 16) that winding angle depends on the guide 70 that traverses.The speed of traversing of the guide 70 that traverses be v1 and slow down before winding speed be under the situation of v2, the winding angle of yarns Y is defined as θ 1.Suppose that a yarn 16 separates so that winding speed is reduced to v3 with rotary drum 13.Next, the speed v 1 of traversing of guide 70 estimates to keep constant substantially owing to traverse when the guide 70 that traverses is retained in same position, therefore the winding angle θ 2 of the yarns Y that observes this moment is greater than winding angle θ 1, the recruitment of winding angle corresponding to winding speed from amount that v2 to v3 reduced.The reason that winding angle changes is that the decline of tube yarn rotating speed causes yarns Y to relax and reduces yarn tension.Said method can be used for changing the winding angle of yarns Y, and spun yarn Y reels in same position simultaneously.Can prevent folded circle like this.

Saddle type protuberance problem is to occur like this, promptly in the coiling amount of the steering position yarns Y at the respective ends place of tube yarn 16 greater than the middle part, this is because be lower than the middle part in the traverse deceleration of guide 70 and the speed of traversing that causes steering position that clubhauls of steering position.Be accompanied by the crank motion of traverse gear, the guide 70 that traverses clubhauls in the opposite end of its scope of traversing, so that the coiling direction of yarns Y on tube yarn 16 turned round.Shown in the long and two-short dash line among Figure 14 B, before the rotating speed decline because of tube yarn 16 caused the winding speed reduction, the steering position of yarns Y was assumed to the corresponding T1 of an end with tube yarn 16.With when rotary drum 13 separates, the tube yarn is keeping yarns Y with in the scope that the guide 70 that traverses breaks away from not separate with the guide that traverses at tube yarn 16, shown in the solid line among Figure 14 B, and the distance increase between traverse this moment guide 70 and the tube yarn 16.Only be that this distance increases the position T2 that the steering position that will cause yarns Y is displaced to the center of more close tube yarn 16.In addition, along with the rotating speed decline of tube yarn 16, the winding speed of yarns Y significantly reduces.Therefore, the winding angle of yarn increases and is displaced to the position T3 at the center of more more close tube yarn 16.Periodically be offset by the steering position that so makes yarns Y, can prevent the opposite end of a large amount of yarns Y local volumes around tube yarn 16.So just can avoid saddle type protuberance problem.In addition, in the present embodiment, be used for the disengagement gear that tube yarn 16 separates with the guide 70 that traverses also can be used as the deceleration control device of the rotating speed that reduces tube yarn 16.Therefore, the structure of equipment can be simplified.

[the 4th embodiment]

The purpose of each embodiment of front is to recover slack before depleted residing in lax yarn on the lax elimination roller 21 of Yarn relaxation eliminating device 10.Yet,,, can prevent that also yarn 16 quality from descending based on different spinning conditions if can in the predetermined short time, restart the lax operation of eliminating even there is not slack.Therefore, it is contemplated that, can be provided with one and separate the coiling sensor, it is used to survey yarns Y and separates coiling from the lax roller 21 of eliminating fully, so that to tube yarn 16 processing of slowing down, increase to predetermined value in the schedule time after yarns Y is separated coiling fully so that reside in the lax slack of eliminating on the roller 21.

In this case, previously described Yarn tension detection apparatus 50 only be used for by switch member 54 detect slacks whether be predetermined value or more than.Yarn tension detection apparatus 50 does not have to be used to detect be wound on to relax eliminates the function whether yarns Y on the roller 21 separates the sensor of coiling fully.Therefore, as example, contact pickup, photoelectric switch or microswitch can be set to separate fully the coiling sensor separately, so that whether be displaced to a predeterminated position (see figure 6) from the lax thread path that detects yarns Y after roller 21 is separated coiling of eliminating fully in yarns Y.

In the present embodiment, in the spinning process of carrying out by spinning machine 1, if cause yarns Y to separate coiling from the lax roller 21 of eliminating fully, then separate the coiling sensor fully and will detect this situation, and separate the coiling detection signal to cell controller 61 outputs for any reason.After receiving this signal, cell controller 61 picks up counting time meter.At the fixed time through after, cell controller 61 is to control signal of controller 62 output, so that tube yarn 16 is separated with rotary drum, thereby reduces the rotating speed of tube yarn 16.Next, after slack being increased to the required effluxion of predetermined value, cell controller 61 contacts tube yarn 16 once more with rotary drum 13.Then, cell controller 61 is proceeded the normal processing of reeling.In addition, under the situation among each embodiment of Miao Shuing, the disengaging time of tube yarn can be regulated according to the winding diameter of tube yarn 16 in front.

Spinning machine 1 according to present embodiment is provided with like this, promptly after yarn is separated coiling from lax elimination roller 21 fully, thread path and the rotational trajectory hand-deliver fork that coiling tension force applies the rod-like element 22a of part 22 of separating that is located in the Yarn relaxation eliminating device 10, as shown in Figure 6.Therefore, the rotating speed of tube yarn 16 descend so that yarns Y lax after, rod-like element 22a can engage with yarns Y immediately.Then, rod-like element 22a can be wound on yarns Y lax the elimination on the roller 21.

[other embodiment]

(about deceleration control device)

Thereby the deceleration control device that is used to reduce the rotating speed of a yarn 16 can be to rotate rocking arm 14 tube yarn 16 is separated the device of natural rev down with rotary drum 13, as previously mentioned.

Perhaps, the deceleration control device as the rotating speed that is used to reduce a yarn 16 can adopt brake equipment, and it slows down to force tube yarn 16 to the pivot shaft of spool 15 or the spool support portion brake activation power on the rocking arm 14.This brake equipment can make the size of braking force regulate according to the deceleration control amount.In this case, owing to the winding diameter of rotor inertia along with tube yarn 16 changes, so braking force can be based on the winding diameter of tube yarn 16 and change.Perhaps, can apply fixing braking force.Yet in this case, the reduction amount of tube sand rotating speed can change.Therefore, still need to be provided with control apparatus and regulate the time that braking force applies with winding diameter according to tube yarn 16.

Perhaps, be equipped with rotary drive motor if each spinning unit 2 is respectively rotary drum 13, the running that then can control motor is to reduce the rotating speed of tube sand 16.Yet, in such embodiments, be necessary for each spinning unit 2 new motor control assembly that are equipped with, so that calculate the acceleration and the deceleration scheme of motor.On the other hand, if the time that tube yarn 16 keeps separating with rotary drum 13 be conditioned, the contact that then only needs application cylinder yarn 16 and rotary drum 13 with separate.Therefore such benefit can be obtained, promptly simple mode can be adopted, with cost-cutting.

(about the winding diameter detecting device)

The winding diameter detecting device that is used to detect a yarn winding diameter not only comprises the device that is used to utilize coiling Time Calculation winding diameter, also comprise the device of the rotating speed that is used to measure the spool 15 that is supporting tube yarn 16, thereby can utilize rotating speed to calculate the winding diameter of a yarn 16.Usually, the rotating speed Be Controlled of spool 15 so that the winding speed of yarn promptly the circumferential velocity of tube yarn 16 keep constant.Therefore, along with the increase of the winding diameter of tube yarn 16, the rotating speed of spool 15 reduces gradually.Like this, because the winding diameter of the rotating speed of spool 15 and tube yarn 16 is closely related, therefore can calculate a winding diameter of yarn 16 based on the rotating speed of spool 15.

[other embodiment]

The present invention can be effectively applied to bore the manufacturing of a yarn very much.Yet the present invention also can be applied to the manufacturing of paralleling tube yarn, and wherein yarns Y is wound onto lax the elimination on the roller 21, to suppress the variation of winding tension.

[effect of invention]

Such as in the claim 1 record, Yarn winding machine according to the present invention comprises one Be located at the Yarn relaxation eliminating device between supply side and the devices for taking-up. Yarn winding machine is established Being useful on slow-revving device falls, for detection of the device of tube yarn winding diameter, be used for root Regulate the adjusting device of deceleration controlled quentity controlled variable according to the winding diameter of tube yarn. Therefore, can Prevent from residing in the damage of the slack on the lax elimination roller of Yarn relaxation eliminating device by ground Lose. In addition, can regulate according to the winding diameter of tube yarn the deceleration control of winding speed Amount. Therefore, when slack need to be resumed, can be with the increase setting of slack In suitable value. This is so that Yarn relaxation eliminating device can be regulated winding tension equably. Therefore, can easily obtain the evenly desirable tube yarn of coiling. Say especially, if will The present invention is applied in the occasion of making cone tube yarn, wherein because in the stroke that traverses at every turn Winding diameter changes and causes very easily winding speed to change, then can be very effectively Make the winding tension stabilisation.

Such as in the claim 2 record, in Yarn winding machine according to the present invention, subtract Velocity control device can be exported for volume according to the coiling amount that the coiling amount detecting device detects Deceleration control signal around speed. Therefore, be reduced to when being lower than predetermined value at slack, The winding speed of devices for taking-up can reduce, and resides in the Yarn relaxation elimination to increase reliably Slack on the lax elimination roller of device. Can prevent from like this residing in the lax roller of eliminating On slack loss.

Such as in the claim 3 record, in Yarn winding machine according to the present invention, base The yarn that Yarn tension detection apparatus in the direct upstream that is arranged on lax elimination roller detects Line tension is calculated and is resided in the lax slack of eliminating on the roller. Therefore, low price and Simple checkout gear can be used as the slack monitor. Like this, just needn't use high Expensive non-contact sensor is pulse counter and be positioned at the lax roller of eliminating because of contact for example On yarn and may produce the contact type sensor of negative effect.

Such as in the claim 4 record, in Yarn winding machine according to the present invention, use Deceleration control system in devices for taking-up comprises the mechanism that separates with rotary drum for the tube yarn. In addition, adjusting device comprises the mechanism that keeps the time of separation for the adjustment barrel yarn. Therefore, Can adopt simple control mode to reduce the rotating speed of a yarn. Like this, can be lowered into This.

Such as in the claim 5 record, in Yarn winding machine according to the present invention, as The fruit traversing gear has the guide of traversing, and then deceleration control system can comprise separation control Device is used in the scope that the yarn that does not make coiling and the guide that traverses break away from the tube yarn Separate with rotary drum. Therefore, can when reducing winding speed, implement reliably to traverse Operation.

Such as in the claim 6 record, for traversing of arranging respectively of each devices for taking-up led Driven by a common power shaft to part, to form simultaneously a plurality of yarns. If can divide Not separately each in a plurality of yarns of control and corresponding traverse between the guide distance with And the rotating speed of tube yarn, then the winding angle of each yarn and steering position can be transferred independently Joint. Therefore, if form simultaneously a plurality of yarns, then can be according to the bar of each yarn Part is implemented best the setting.

Such as in the claim 7 record, in Yarn winding machine according to the present invention, use Can also be used as reducing tube yarn rotating speed in the separation control device that a yarn is separated with rotary drum Deceleration control system. The structure of equipment is simplified. Useful is, Adopt such structure, the structure described in the claim 6 is implemented easily.

Claims (7)

1. Yarn winding machine comprises: batch up gear, and it is used for the reel for yarn coiled tube yarn from the supply side feeding; And Yarn relaxation eliminating device, it has the lax roller of eliminating, the described lax elimination roller a part of yarn between described supply side and described batch up gear that is used to reel, to absorb the variation of yarn winding tension, it is characterized in that, described Yarn winding machine also is provided with: deceleration control device, and it is used to control the winding speed of yarn, so that described winding speed is lower than the supply rate of yarn; The winding diameter detecting device that is used for described tube yarn; And control apparatus, it is used for regulating according to the winding diameter of tube yarn the deceleration control amount of described deceleration control device.

2. Yarn winding machine as claimed in claim 1 is characterized in that, is provided with the coiling amount detecting device, is used to detect the coiling amount of yarn on described lax elimination roller; According to the coiling amount that the coiling amount detecting device detects, described deceleration control device output is about the deceleration control signal of described winding speed.

3. Yarn winding machine as claimed in claim 2, it is characterized in that, described coiling amount detecting device is arranged on the direct upstream of described lax elimination roller, it comprises the Yarn tension detection apparatus that is used for detecting yarn tension before yarn to be ready being wound onto on the lax elimination roller, and it calculates the slack that resides on the described lax elimination roller according to the detected yarn tension of Yarn tension detection apparatus.

4. as arbitrary described Yarn winding machine in the claim 1 to 3, it is characterized in that described batch up gear comprises rotary drum, its with tube yarn state of contact under rotate, drive a tube yarn with rotation; Described deceleration control device comprises and is used for mechanism that the tube yarn is separated with rotary drum; Described control apparatus comprises and is used to regulate the mechanism that a yarn keeps the time of separation that the described time is as the deceleration control amount of described deceleration control device.

5. Yarn winding machine as claimed in claim 4 is characterized in that described batch up gear comprises the traverse gear that has the guide that traverses; Described deceleration control device comprises separation control device, is used in the yarn that does not make coiling and scope that the guide that traverses breaks away from the tube yarn being separated with rotary drum.

6. Yarn winding machine as claimed in claim 5 is characterized in that a plurality of batch up gears are set up in parallel, and the guide that traverses that is provided with respectively for each batch up gear is driven by a common power shaft, to form a plurality of yarns simultaneously; Described separation control device and described deceleration control device can be controlled each described tube yarn and the corresponding distance between the guide and the rotating speed of a yarn of traversing respectively separately.

7. as claim 5 or 6 described Yarn winding machines, it is characterized in that when the tube yarn left the guide that traverses of described traverse gear, described separation control device made a yarn separate with rotary drum, to reduce the rotating speed of tube yarn.

Images